Verification of the effect of quality control implementation to increase accuracy of rainfall estimation in Lombok areas

2019 ◽  
Author(s):  
Emmilia Monica Andrianni Sulistio ◽  
Anisa Budi Lestari ◽  
Rizaldi Ramadhan ◽  
Raden Mochammad Dwi Mulya ◽  
Chray Fanly Jovini Tambengi ◽  
...  
Keyword(s):  
Quality Control ◽  
Rainfall Estimation ◽  
Control Implementation

scholarly journals Precipitation Classification and Quantification Using X-Band Dual-Polarization Weather Radar: Application in the Hydrometeorology Testbed

2013 ◽  
Vol 30 (9) ◽  
pp. 2108-2120 ◽  
Author(s):  
S. Lim ◽  
R. Cifelli ◽  
V. Chandrasekar ◽  
S. Y. Matrosov
Keyword(s):  
Quality Control ◽  
Phase Retrieval ◽  
Estimation Method ◽  
Rain Gauge ◽  
Dual Polarization ◽  
Rainfall Estimation ◽  
Differential Phase ◽  
Melting Region ◽  
X Band ◽  
Fuzzy Logic Technique

Abstract This paper presents new methods for rainfall estimation from X-band dual-polarization radar observations along with advanced techniques for quality control, hydrometeor classification, and estimation of specific differential phase. Data collected from the Hydrometeorology Testbed (HMT) in orographic terrain of California are used to demonstrate the methodology. The quality control and hydrometeor classification are specifically developed for X-band applications, which use a “fuzzy logic” technique constructed from the magnitude of the copolar correlation coefficient and the texture of differential propagation phase. In addition, an improved specific differential phase retrieval and rainfall estimation method are also applied. The specific differential phase estimation is done for both the melting region and rain region, where it uses a conventional filtering method for the melting region and a self-consistency-based method that distributes the total differential phase consistent with the reflectivity factor for the rain region. Based on the specific differential phase, rainfall estimations were computed using data obtained from the NOAA polarimetric X-band radar for hydrometeorology (HYDROX) and evaluated using HMT rain gauge observations. The results show that the methodology works well at capturing the high-frequency rainfall variations for the events analyzed herein and can be useful for mountainous terrain applications.

Nonstatistical internal laboratory quality control implementation via specialized software

2018 ◽  
Vol 7 (1) ◽  
pp. 47
Author(s):  
N. G. Gordienko ◽  
L. P. Gotovtseva ◽  
A. V. Ushkov
Keyword(s):  
Quality Control ◽  
Specialized Software ◽  
Control Implementation

scholarly journals Importance of Quality Control Implementation in the Production Process of a Company

2018 ◽  
Vol 10 (1) ◽  
pp. 248
Author(s):  
Francisco Javier Blanco-Encomienda ◽  
Elena Rosillo-Díaz ◽  
Juan Francisco Muñoz-Rosas
Keyword(s):  
Quality Control ◽  
Parameter Estimation ◽  
Problem Solving ◽  
Customer Satisfaction ◽  
Production Process ◽  
Positive Influence ◽  
Defective Items ◽  
Quality Product ◽  
A Company ◽  
Control Implementation

The concept of quality has gained increasing importance over the last decades. Regarding the production process of a company, the quality control implementation allows companies to offer a higher quality product, which has positive influence on customer satisfaction. This paper aims to reflect the importance of statistical methods for quality control. Based on the two broad areas of statistical inference, parameter estimation and hypothesis testing, we demonstrate the usefulness of such methods in problem solving when the proportion of defective items is considered.

Aspects about the Quality Control at First Article Inspection (FAI) for Parts Obtained by Materials Composites Used in the Railway Sector

2018 ◽  
Vol 27 ◽  
pp. 262-267
Author(s):  
Cristina Ileana Pascu ◽  
Stefan Gheorghe ◽  
Dragos Popa ◽  
Ovidiu Popa
Keyword(s):  
Quality Control ◽  
Composite Materials ◽  
Technological Process ◽  
Control Implementation

In the railway sector, on the prototyping phase of product made by composite materials, it is necessary the implementation of a strict quality control using the instrument First Article Inpection (FAI). In this paper some of the most important steps in quality control implementation of FAI for composite parts at the prototyping parts made of composite materials in the railway field are presented. Thus, the necessary steps for developing FAI and the process diagram are given. Also, the method FMEA process is presented in order to eliminate the risks of errors and defects during the development of the technological process for obtaining the composite piece.

VMAT quality control implementation for an ELEKTA Beam Modulator accelerator, with Artiscan software

2015 ◽  
Vol 31 ◽  
pp. e38
Author(s):  
D. Morele ◽  
S. Gempp ◽  
J. Desrousseaux ◽  
J.M. Nigoul ◽  
S. Capdeville
Keyword(s):  
Quality Control ◽  
Control Implementation
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